Studs keep disappearing from composite deck design

I have been working on a composite deck design for several months. The building has passed permit and is about to be issued for construction. So far, I have had no problems with it. All beam designs were locked so any changes to the design due to architectural changes could be easily seen. However, after changing some slab penetrations today, all the sizes changed. Namely, the number of studs for around 800 beams disappeared all over the model. The sizes look to have stayed the same though. I do not want to have to unlock all sizes and then have to go through thousands of beams and check every one to see which ones have been changed from our previous submissions. Pictures are below for comparison. One is an old model of the same area.)

Help?

  • First off you will want to restore the backup file, either one you have saved your self, or one that the program generates periodically. Just rename the .backup file to .rss.
    Changing a penetration should only affect beams in the vicinity of the opening. Did anything else happen like a change in version or a change in any of the design criteria, especially stud criteria?
    If the file is already affected this way I may not be able to tell what happened, but it does not hurt to send a copy of it to us using the instructions on the Secure File Upload link below.